Welcome to TradeChina
Cable economical Japan home intelligent power inverter for sale
FOB Reference Price
Purchase quantity ()
Minimum order quantity
Payment
Meo wig Trading Co., Ltd
China - Hangzhou
Manufacturer
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
51-100 people
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
Certifications
BRC
Product Specifications
--Product Description
Products Description
Product Name | Sine Wave Filters PSW Series |
Place of Origin | Japan |
Power supply voltage and frequency | 400V, 50Hz |
The total load current value of the motor (A) | 135A |
Carrier frequency of inverter | 4kHz or higher |
Sine Wave filter can reduces surge voltage and leakage current by bringing the PWM voltage control waveform closer to a sine wave from a rectangular wave form.
SWF is an abbreviation for Sine Wave Filter.
Due to the high-speed switching of the inverter section with the IGBT, the PWM-controlled voltage waveform is a rectangular waveform.
The SWF converts this rectangular output voltage waveform into a sinusoidal waveform.
SWF utilizes low-pass filter technology.
With pulse-width-modulated PWM-output-voltage waveforms through high-speed switching at IGBT of the inverter section, Low-pass filter technology is used to convert to a sine waveform.
PWM waveform to high frequency component removes most of the (pulse) and bring the voltage waveform applied to the motor closer to the sine wave.
This suppresses the surge voltage and realizes the long life of the motor.
Sine Wave filter data
When suppressing the surge voltage applied to the motor terminal (input winding).
When the cable between the inverter and the motor is long.
When converting an existing motor with low surge resistance to an inverter.
When installing a buck-boost transformer between the inverter and the motor.
1. Motor protection by surge voltage and voltage reflection
The greater the incompatibility of the surge impedance between the motor and cable, the greater the reflected voltage becomes large.
A sine wave filter is used to reduce leakage current and voltage ripple caused by inverters or cable lengths for motors with low surge voltage resistance.
2. Voltage step-up/down transformer
If the inverter and motor are installed at a long distance and need to be transformed by a transformer, the voltage waveform applied to the transformer must be close to a sine wave.
By making it almost sinusoidal, It is possible to transform without using a special transformer, so it is economical in terms of cost and delivery.
3. Application to general load (photovoltaic and wind power generation)
In addition to motor loads using inverters and natural energy sources such as solar and wind power generation when used with so-called general loads, the voltage ripple must be reduced.
Addition of a special reactor also enables use under general load to a sinusoidal filter.
4. Cable length (increase in stray capacitance due to relative dielectric constant)
In the case of an submersible motor, the stray capacitance becomes considerably large due to the effect of the dielectric constant peculiar to the atmosphere.
It has the property of being about 80 times larger.
This means that the capacitance (μF) of the motor drive output circuit is much larger than the conductor in air.
Therefore, voltage reflection becomes even more pronounced.
Submersible motors are subject to strong effects of cable length.
Each of the other application has a unique relative permittivity,
and the same is true for each case.
Company Profile
DHOWA TECHNOS CO., LTD
Deliver Best Engineering Solutions for Factory
DHOWA TECHNOS means a trading company that handles industrial facilities and equipments all produced using proven Japanese technology.
We provide high-quality products,comprehensive solutions and services for customers of manufacturing industries such as steel,chemicals machinery & governments.
Our 4 business pillars are :
1.Plant engineering; Industrial motors,power source devices.
2.System engineering;Power generators,infrastructure facilities.
3.Factory automation systems;Robot systems products,connectors.
4.Electrical equipment＆information technology;Office equipments, projectors,printers and so on.
No desirable products?
Sourcing assistant>
How to start your business
- Step 1Find your interested products by search keywords
- Step 2Contact the supplier by clicking ”Enquire” or “request meeting” button, otherwise, you also could consult our import consultant.
- Step 3After verifying your email, get response from suppliers or our trade manager will contact you as soon as possible
- Step 4Set up meeting with the Chinese supplier without language barrier
Related Categories
InductorsIndustrialPowerSupplyInverters&ConvertersSwitchingPowerSupplyUninterruptedPowerSupply(UPS)VoltageRegulators/StabilizersPopular Searches
fakra adapteropen adapterram adapter3v ac adaptersmps adapters.5 ac adapter0.5a adapterpto adapter0.5a adaptervial adapterscsi adapterairway adaptersddr ram adapters1 tap adapter8.4v adaptery adapterrohs adaptercng adapterdps adapterfakra adapter0.5a adapteriran adapterx300 adapterpto adapterr410a adapter0.85a adapterrj9 adapternex adapterps2 adapterr410a adapter510 adapterh13 adapters.5 ac adapter0.85a adapter2v dc adapter